Plasma amine oxidase from bovine plasma is primarily used in biochemical research to study the oxidative deamination of various amines. It plays a crucial role in understanding metabolic pathways involving biogenic amines, such as histamine and serotonin, which are important in physiological and pathological processes. This enzyme is also utilized in the development of assays to detect and quantify amine levels in biological samples, aiding in the diagnosis of diseases related to amine metabolism. Additionally, it serves as a tool in enzymatic studies to explore its potential therapeutic applications, particularly in conditions where amine imbalance is a contributing factor.